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- USA
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Ships within 48 hours · Estimated delivery Jul 15 - Jul 20
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Description
Universal 8 Dual Zinc Power Brake Booster PB8531Overview: Universal 8" Dual Diaphragm Power Brake Booster Zinc Chromate finish 3 3 8" Bolt Pattern (Firewall Side) 3 3 8" Center to Center Bolt Hole (Master Cylinder Side) Uses adjustable pin Great for installs on GM A, F, X, Body Cars with Big Blocks or Engines with tall headers Notes: These boosters will work on a variety of GM, Ford, Trucks, and Passenger Cars. When ordering an universal brake booster please make sure you have the correct brackets
Overview:
Universal 8" Dual Diaphragm Power Brake Booster
- Zinc Chromate finish
- 3-3/8" Bolt Pattern (Firewall Side)
- 3-3/8" Center to Center Bolt Hole (Master Cylinder Side)
- Uses adjustable pin
- Great for installs on GM A, F, X, Body Cars with Big Blocks or Engines with tall headers
Notes:
- These boosters will work on a variety of GM, Ford, Trucks, and Passenger Cars. When ordering an universal brake booster please make sure you have the correct brackets or pedal assembly for your application.
- Will need adjustable pedal rod extension and the correct clevis for your application.
- Length from mount face to M.C. mount face is 5-1/4". Pushrod extends 4" from mount face and has 3/8"-24 threads. Mount bolts are 5/16"-20 x 7/8".
Specs:
| Part Number | PB8531 |
| Brake Booster Type | Vacuum Diaphragm |
| Brake Booster Finish | Cadmium Zinc plated |
| Mounting Pattern | 3-3/8 in Square |
| Brake Booster Diameter | 8 in Dual |
| Length | 5.5 in |
| Rod Length |
4 in |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 972 reviews
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Product Reviews
★★★★★ 5
Recomendado
Color: Grey
Exelente!
Fácil de instalar y muy efectivo para el propósito para el cual lo compré.
Recomendado!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
★★★★★ 3
Wobbly
Color: Grey
Wobbly and the metal bars keep coming off. Be aware. I’ve tripped over them. Be careful.
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Reviewed in the United States on April 21, 2026
★★★★★ 5
Very practical for the price.
Color: Black
Very practical for the price.
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Reviewed in the United States on May 25, 2026
★★★★★ 4
Good for a quick backdrop
This works well for what I needed – a simple background for my kids’ online school. It’s lightweight and very easy to put together, and it stands up fine without needing to mount anything.
The color is listed as black, but it’s more of a dark gray in person. Not a huge deal, just something to be aware of. It’s not super heavy duty, but it does the job for privacy and as a video backdrop.
Overall, a good, portable divider that’s quick to set up and works well for light use.
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Reviewed in the United States on February 21, 2026
★★★★★ 5
Essay to assemble
Color: Grey
Very nice. Did the job the way I wanted.
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Reviewed in the United States on April 28, 2026
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